mallbtt



' E. J. MALLETT.

Annunciaton Patnted 0a. 3, 1848.

UNITED STATES E. J. MALLETT, OB NEW YORK, N. Y.

BELL-TELE-GRAPH,

Specification of Letters Patent 1\To. 05,823, daced 00tober 3, 1848.

Be it known um I, E. J. MALLETT, Of thei city, county, anal State of NewYork, have inventecl new ancl useful Improvements in the Method ofArranging, Hanging, and Striking Bells for Hotels and other Purposes,und that the following is a, full, clear, and exact clesoription of theprinciple or oharacter which distinguishes them from all other thingshefore known and o-f the man 11er of making, oonstructing, and usingthej same, reference heing hacl t-o the accompany-f ing clrawings,making part of this specifica= tio11, in which l Figure 1 is a frontelevation of the appa-F ratus; Fig. 2, a rear elevation; and F ig. 3, a;ertical section taken at the line (X X) of 1g. l. The sune lettersinclicate like parts in all the figures.

Various attempts have heen made to improve the methocl of hanging hellsin clwell-" ing houses, hotels, &C. with the view to hav6 all the wiresact upon one and the same hell; ancl each wire proviclecl with aseparate slide o1 hinged numher which is either thrown upj or let cl0wnto inclicate t-he numher of the room; hut so far all these plans haveheen attended with two serious objections, viz; all the wires heing inconnection with the lever that strikes the one hell usel for all thewires, it follows that if any one wire is held. back intentionally or byacciclent, n0 othe1} wire ca'n cause tl1e hell to he struck, and henceso long as the obstruction continues 110 alarm i.s given when any o-therwire is pullecl; and the ohjection referred to is thg use of springswithin the apparatus to re+ turn the slides tliat operate the lever 0fthe hammer, which springs are suhject to des rangernent requiringfrequent repairs. The leacling, und in reality the only ohject o1 usingone hell for all the apartments is t0 save the room occupiecl hy thehells when one is used for each apartment, for hy the olcl mocle ofhanging hells, euch hell is hung to a spring with levers, &c., whichrequires much room, particularly for large, hotels.

The ohject of my improvements is 130 remedy the evils of the olcl plan,and the im;- provements heretofore made thereon, ancl t0 this encl myinvention consists first in .arfranging the hells in series' of rows,2md eaclo series arranged and secured onto a rod with the convexity ofone let intothe concavity of the prececling, and arranging the series inrever sed order, that is the open en(ls 0f one series 130 the right andth0se of the next to the leftanclso on to any extent desired, whereby agreater numher of hells can he arrangecl within agiven space than hy anyother plan known "00 me. And the second part 01"? my invention consistsin suhstituting grztvity in the apparatus for springs t0 restore t-heparts after the wires have heen pulleol, hy having eaoh wire oonnectedwith a separate lever which as the wire is pulled has one arm to act 011an inclined or curved face of the hammer lever t0 strike the hell andthe other arm to act on aninclined 01 curVeol face of another leverthatliherat-es a slide 011 which the numher of the .ro'om or any otherdesirecl sign is painted 0r engraveclall these levers heing so; formedand hung as t0 return t0 their original position hy their weight themoment that the wire is liberated.

In the accompanying drawings (a) represents the fmme of t-he apparatusthat can he made in any other form or manner adapted to the purpose andto the location. -T0 the re ar face 0:E this frame are seoured the hells(b) which are arranged in the following manner: The hells are in thesemispherical form well known as clocks hells; they are arranged inseries 011 parallelrods (o) .secured 130 the frame hy nuts or keysorinany other desired manner. a hole in the centerthey are slipped 011130the rods with the mouths all in the same direction and secured hy nuts(d) at each encl und tuhular metallic and leather wesh- The hells have:eaeh" ers (e, f) interposecl so as-to keep themst the requireddista'nces apart and yet n0t deaden the vihration. The upper row is putin place with the mouths of the hells in series of hammers (g) oneseries for each series of hells. The upper encls o-f the hammer leversare each fittecl onto a short metal tube (h) that turns freely on a rod(i) securecl at each end to the frame, a tubular Wasl1er (j) beinginterpoed between the tubes (h) so that the motion o-f one l1ammer maynot be communicated to t-h'e others.

The front part of the hammer levers, as at (In), are maole angular eachpresenting two opposite inclined planes, one running up and the other(10W11, anol these inclined faces are acted upon by the encl of thehorizontal arm of a series of levers (Z) bung in the Same manner as tl1ehammer levers so that when tl1e levers (Z) are drawn upthey act 011 the10W61 inclined face of the hammer levers and forcethe hammer toward tl1ebell, and so s0o11 as the levers (Z) have passecl by t-he angle formedby tl1e junction of the two inclined faces t-l1e weight of the hammercauses them to fall back, and when the levers (Z) fall back by theirweight the ends acton the uppr inclined face of the han1mer levers andagain force the hammers toward the bells to give the seconcl alarm.

The horizontal arm of the levers (Z) should be made sulficiently heavyto insure their return the moment the wir-es are liberated. There is cfcowse a series of levers (Z) for each series cf bells.

There is another arm (m) on each of the levers (Z) Which is nearlyvertical and then bears forward and slightly downward to act 0n aprojecting lip (n) 013 a pendent 1ever (0) which has a hook (p) in front011 which is hung a corresponding hook (g) that projects from the backface of aplate (r) that is adapted to slidefreel; and vertically in ways(s, s) on the back face oi the front plate (t) of the apparatus in Whichthere is a hole through Whi0h any number or figure 011 the slide can beseen when dropped down but not othervvise.

The upper face 0f the hook (p) 011 the 1ever (0) shoulcl be acurve ofwhich the axis of motion of the said lever is the center that thesliding plate may not be moved by the Working cf the lever (0) until thehook escapes ancl permits it to drop. There must of course be a seriesof hook le'vers (0) f01' each series of leve1s (Z) and hung 111 the samemanner ancl so weightecl as t0 insure their returnto the requiredposition when liberated. Ancl in like manner there must be a series ofsliding plates for each series of hook levers and corresponcling holesthrough the face plate er dial.

Wl1en the sliding plates a1e liberated those of each series fall onto arod (t') which regulates the distance to which they are t0 fall tl1atthe number o1 otl1er sign thereon may be opposite the aP-propriate holein the face plate o1 dial; and there is a rod (t) for each series ofslicling plates wl1ich r0Cls are connected at each end by a connectingplate (u) and jointed totwo parallel levers (v, 0), so that all the rolsca'n.be moved up ancl down together by a band lever (w) and connect ing10d 01' wire (m), forthe purposes of-restoring the sliding plates afterany of them have been ilroppel.-

The wires (y) from all the rooms of a building'or any other structurea1e carried down viertically through holes in the top andattacheol 0neto each of the levers (Z) so that when any one o-f the wires is.pulledthe lever (Z) is drawn up which forces the corresponding hammer againstits appropriate bell, and at the same tirne the curved arm (m) of thelever (Z) acts upon the lip of the corresponoling penclent lever (0)Whicl1 disengages its hook fr0m the hook of tl1e sliding plate wl1ichpermits it to cl1op tl1at the number 01' other sign on the 1:'acethereof may be read through the appropriate hole in the face plate 01'dial, and so soon as the wire is liberateol the lever (Z) falls back bygravity Which causes the hammer again to strike the bell and at the Sametime permits the penclulous lever (0) to fall back in a osition tocatchanol hook the sliding plate whenejver the call has been answereclancl the servant by the band lever lifts it back to its original place.

The number in each series and the number of series cf bells andcorresponcling arts can be regulated according to the wants of anyestablishment.

The form 0f' the levers and the various parts can be varied at pleasureso long as the principle cf action 01 moole cf opera tion described isretained. It Will be obvious from the foregoing that my invention isapplicable to various purposes analogous to inclicating the numbers ofrooms, such for instance as taking t-he yeas and nays, giving directionsin any part of an establishment from an office, by substituting fornumbers signs and expressions; giving directi0ns to the engineer onboard steam vesse1s and other similar 01' analogous purposes toonumerous t0 name.

What I claim as my invention and clesire to secure by Letters Patent, is

The arrangement and combination of levers operated by Wires with thehammers and sliding plates by means of angular o1 curved faces,substantially as cleseribeol, whereby I am enabled tosub-stitute gravityfor the tension of springsin apparatus -for ringing bells and indicatingwhatis wanted or required t0 be done, as fully set f0rth.

E. J. MALLETT.

VVitnesses:

A. P. BROWNE, E. PETERS.

